Is there any trace of category of a topic into the topic URL?

[reaon]

Is it possible to determine which category does a topic belong to?

for example:
https://community.nodebb.org/topic/351/nodebb-wiki is for Announcements
https://community.nodebb.org/topic/1232/centering-imgs is for General Discussion

but it seems no way to find their category via their URLs?!